Encyclopedia Entry: 71V35761S183BGGI

Product Information Overview

Category: Integrated Circuit (IC)

Use: The 71V35761S183BGGI is a high-speed synchronous dynamic random-access memory (SDRAM) IC. It is designed for use in various electronic devices that require fast and reliable data storage and retrieval.

Characteristics: - High-speed operation - Low power consumption - Large storage capacity - Synchronous interface - Multiple banks for efficient data access

Package: The 71V35761S183BGGI is available in a compact BGA (Ball Grid Array) package, which provides excellent thermal performance and allows for easy integration onto circuit boards.

Essence: This IC is an essential component in modern electronic devices, enabling efficient and reliable data storage and retrieval operations.

Packaging/Quantity: The 71V35761S183BGGI is typically sold in reels or trays, with each reel containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Type: Synchronous DRAM (SDRAM)
• Organization: 256M words x 16 bits
• Operating Voltage: 3.3V
• Clock Frequency: Up to 166 MHz
• Access Time: 5.4 ns
• Refresh Mode: Auto-refresh and self-refresh
• Interface: Parallel
• Package Type: BGA
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 71V35761S183BGGI IC has a total of 144 pins. Here is a brief overview of the pin configuration:

• Pins 1-8: Address Inputs (A0-A7)
• Pins 9-16: Address Inputs (A8-A15)
• Pins 17-24: Address Inputs (A16-A23)
• Pins 25-32: Address Inputs (A24-A31)
• Pins 33-40: Data Inputs/Outputs (DQ0-DQ7)
• Pins 41-48: Data Inputs/Outputs (DQ8-DQ15)
• Pins 49-56: Data Inputs/Outputs (DQ16-DQ23)
• Pins 57-64: Data Inputs/Outputs (DQ24-DQ31)
• Pins 65-72: Control Inputs (RAS, CAS, WE, CS)
• Pins 73-80: Clock Inputs (CLK, CLK#)
• Pins 81-88: Power Supply (VDD, VDDQ, VSS)
• Pins 89-96: Reserved
• Pins 97-104: Data Mask Inputs (DM0-DM7)
• Pins 105-112: Data Mask Inputs (DM8-DM15)
• Pins 113-120: Data Mask Inputs (DM16-DM23)
• Pins 121-128: Data Mask Inputs (DM24-DM31)
• Pins 129-136: Reserved
• Pins 137-144: Miscellaneous (NC, VREF)

Functional Features

The 71V35761S183BGGI offers several functional features that enhance its performance and usability:

1. High-Speed Operation: With a clock frequency of up to 166 MHz and an access time of 5.4 ns, this IC enables fast data transfer and retrieval.

2. Low Power Consumption: The IC is designed to operate efficiently with low power consumption, making it suitable for battery-powered devices.

3. Multiple Banks: The presence of multiple banks allows for concurrent access to different memory locations, improving overall data access efficiency.

4. Auto-Refresh and Self-Refresh: The IC supports both auto-refresh and self-refresh modes, ensuring data integrity during extended periods of inactivity.

Advantages and Disadvantages

Advantages: - High-speed operation enables fast data transfer - Low power consumption for efficient energy usage - Large storage capacity meets the demands of modern applications - Synchronous interface allows for precise timing control - Multiple banks enhance data access efficiency

Disadvantages: - Limited compatibility with older devices that do not support synchronous interfaces - Relatively higher cost compared to other memory technologies

Working Principles

The 71V35761S183BGGI operates based on the principles of synchronous dynamic random-access memory (SDRAM). It stores data in a matrix of capacitors, with each capacitor representing a single bit of information. The IC uses a synchronous interface, where data transfers are synchronized with an external clock signal.

During read or write operations, the IC receives address inputs to select the desired memory location. Control signals such as RAS (Row Address Strobe), CAS (Column Address Strobe), and WE (Write Enable) determine the specific operation to be performed. Data is transferred